Acetylene-gas generator.



Patented Aug. 7,1900.

/ /Zm @C A. c. EmsTEm. ACETYLENE GAS GENERATOR.

(Application led Nov. 20, 1899.)

(No Model.)

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rnTnn STATESA PATENT Orrrc,

ALFRED O. EINSTEIN, OF ST. LOUIS, MISSOURI.

ACETYLENE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 655,300, dated August7, 1900f Application filed November 20, 1899. Serial No. 737,544. (Nomodel.)

To all whom it may concern:

Be it known that I, ALFRnnC. EINSTEIN, a citizen of the UnitedStates,residing at the city of St. Louis, in the State'of Missouri, haveinvented a certain new and useful Improvement in Acetylene-GasGenerators,of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification.

My invention relates to that class o f devices used in producing gasfrom carbids on the application of liquid thereto.

The object ot this invention is to produce a generator of thedescription named in which the quantity of liquid fed to thecarbid iscontrolled to a nicety, the quantity of liquid delivered being governedentirely by the pressure of the gas produced within the generator. Y

The drawing shows the generator-casing in vertical section and theliquid-feed tube mainly in elevation.

1 designates the generator-casing, provided in its upper part with aliquid-reservoir 2, having an inlet 3, closed by a cap 4.

5 designates the gas-chamber, in which the carbid A may be placed in anyusual or convenient manner.

In the bottom of the reservoir 2 is a valveseat 6, that receives a valve7 on a stem 8, that may be operated from the exterior of the generatorto permit the flow of liquid from the reservoir into the liquid-feedtube 9. From the valve-seat 6 the feed-tube 9 extends down- Wardly to apoint 10, from which it is bent upwardly in an uptake 11 and is providedwith an outlet-nozzle 12. Beyond the 0utlet-nozzle 12 from the uptakeportion 11 of the feedtube is a horizontal portion 13, into which theliquid may iiow, so as to occupy a position approximately on a planewith the orice in the outlet-nozzle 12. Extending vertically from thehorizontal part 13 of the feed-tube is a pipe 14, that leads upwardlyinto the liquidreservoir 2 and is connected to a return-bend 15, towhich is united a vertical pipe-leg 16, that extends downwardly andthrough the bottom of the reservoir into the gas-chamber 5.

17 designates an outlet-pipe leading from the gas-chamber and providedwith a suitable valve 18. On the uptake portion of the liquidfeed tubeis a guard or washer 11, located in proximity to the outlet-nozzle 12,this guard or Washer being designed to receive the flow' of liquid asitdischarges from the outlet-nozzle, so that the liquid is caused tofall in a central location onto the carbid instead of flowing down thetube to the point 10, from which it would discharge away froni thecenter of the body of carbid.

In the practical use of this generator the carbid A is placed within thegenerator, and the reservoir 2 being filled with liquid the liquid ispermitted to liow into the feed-tube 9 from said reservoir. The liquidows to the outlet-nozzle 12 and discharges therefrom to `the gas-chambersuch pressure acts against the free discharge of liquid through theoutlet-nozzle, and it is only through pressure exerted within thefeed-tube to counteract the exterior pressure against the outlet-nozzlethat the liquid is caused to flow 'through said outlet-nozzle. Thepressure within the feedtube is obtained by the gas passing from the gaschamber into the vertical pipe -leg through the return-bend 15 into thevertical pipe 14 and downwardly to the horizontal part 13 of thefeed-tube, as by this arrangement the pressure acts against the liquidthat has flowed into said horizontal part of the feed-tube, and therebyequalizes the pressures exterior and interior of the feed-tube,

.so that the liquid may discharge uniformly.

The provision of the horizontal part 13 of the feed-tube comprises theessential feature of the invention herein described in that by the useof such part lying in a plane with the outlet-nozzle the liquid ismaintained in the part named on a level with the liquid rising into theoutlet-nozzle, and hence the liquid is not conveyed to the outlet-nozzlefrom said horizontal part by the force of gravitation, but is controlledentirely by the gas-pressure exerted within the generator, and as aresult the amount of liquid delivered to the carbid is dependent uponthe gas-pressure, to force it from the feed-tube, and as the pressuresinterior and exterior of the feed-tube must equalize there is noliability of an excess of liquid being fed to the carbid.

In the event of an excess of gas being gen- IOO erated in thegas-chamber 5 the gas passes therefrom through the pipe-leg 16 andthence to the horizontal portion 13 of the feed-tube,

which excessive pressure causes the liquid tobe forced backwardly ordownwardly through the uptake 11 and to the liquidreservior. Thisresults in the liquid being conveyed away from the outlet-nozzle, andconsequently there is obviated any liability of an excess of liquidbeing discharged to the carbid to produce a surplusage of gas. As soonas the gas-pressure again becomes normal the liquid is permitted toreturn to the outlet-nozzle and the generating process is resumed.

I claim as my iuvention- 1. In a gas-generator, the combination of acarbid-container, a gas-chamber therein, a liquid -reservoir, aliquid-feed tube leading from said reservoir and having an uptake, an

part located beyond said nozzle and providedv with communication Withsaid gas-chamber; substantially as described.

2. In a gas-generator, the combination of a carb'idcontainer, thegas-chamber therein, a liquid-reservoir, a liquid-feed tube leading fromsaid reservoir and having an uptake, an outlet-nozzle projectingupwardly from said uptake, said feed-tube having a horizontal partlocated beyond said nozzle and provided With communication With saidgas-chamber, and a guard located on said uptake; substantially asdescribed.

ALFRED C. EINSTEIN. In presence 01?- E. S. KNIGHT,

N. V. ALEXANDER.

